<template>
  <div class='login_container'>
    <div class='login_box'>
        <div class="avatar_box">
         <img src="../assets/logo.png" alt="">
       </div>
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class
      ="login_form">
       <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
       </el-form-item>
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
       </el-form-item>
       <el-form-item class="btns">
        <el-button type="primary" @click="login">登录</el-button>
        <el-button type="info" @click="resetLoginForm()">重置</el-button>
       </el-form-item>
      </el-form>
   </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) {
          return
        }
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败!')
        this.$message.success('登录成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang='less' scoped>
.login_container{
  background-color:#2b4b6b;
  height:100%;
}
.login_box{
  width:450px;
  height:300px;
  background-color:#fff;
  border-radius:3px;
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
}
  .avatar_box{
        height: 130px;
        width: 130px;
        border: 1px solid #eeeeee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #dddddd;
        position:absolute;
        left: 50%;
        transform: translate(-50%,-50%);
        background-color: #fff;
    }
    .avatar_box img{
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eeeeee;
    }
    .btns{
      display:flex;
      justify-content:flex-end;
    }
    .login_form{
      position: absolute;
      bottom: 0;
      width:100%;
      padding: 0 20px;
      box-sizing:  border-box;
    }
</style>
